Dodge Viper SRT-10 (ZB). Manual — part 340
Symptom:
BCM - IOD WAKE UP CLUSTER OUTPUT OPEN / SHORT TO
GROUND
When Monitored and Set Condition:
BCM - IOD WAKE UP CLUSTER OUTPUT OPEN / SHORT TO GROUND
When Monitored:
With the ignition in all positions.
Set Condition:
When the BCM output is off and the BCM detects that the Instrument
Cluster IOD Wake Up circuit is open or shorted to ground for at least 125 milliseconds.
Circuit is checked before Sleep Mode.
POSSIBLE CAUSES
INSTRUMENT CLUSTER WAKE UP SIGNAL CIRCUIT OPEN
INSTRUMENT CLUSTER WAKE UP SIGNAL CIRCUIT SHORT TO GROUND
BODY CONTROL MODULE
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the BCM C4 harness connector.
Disconnect the Instrument Cluster C1 harness connector.
Measure the resistance of the Wake Up circuit between the BCM C4 connector and
the MIC C1 connector.
NOTE: If set, diagnose and repair IOD - B(+) OUTPUT SHORT DTC before
proceeding with this test.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Instrument Cluster Wake Up Signal circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition off.
Disconnect the BCM C4 harness connector.
Disconnect the Instrument Cluster C1 harness connector.
Measure the resistance between ground and the Wake Up Signal circuit.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Instrument Cluster Wake Up Signal circuit for a short
to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
253
IGNITION, POWER, ACCESSORY
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Instrument Cluster C1 harness connector.
Reconnect the BCM C4 harness connector.
Install a DVOM between the Instrument Cluster Wake Up Signal circuit of the
Instrument Cluster C1 harness connector and ground.
Set the DVOM to indicate resistance.
Turn the ignition on.
With the DRBIII
t, select Body Control Module, then Actuators.
Observe the DVOM while using the DRBIII
t to actuate the Cluster Wake Up 9On9.
Did the DVOM indicate a brief (approximately 2 seconds) continuity to ground?
All
Yes
→ Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace and program the Body Control Module in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
254
IGNITION, POWER, ACCESSORY
BCM - IOD WAKE UP CLUSTER OUTPUT OPEN / SHORT TO GROUND —
Continued
Symptom:
BCM - IOD WAKE UP CLUSTER OUTPUT SHORT TO VOLTAGE
When Monitored and Set Condition:
BCM - IOD WAKE UP CLUSTER OUTPUT SHORT TO VOLTAGE
When Monitored:
With the ignition in all positions.
Set Condition:
The BCM output is active and detects that the Instrument Cluster Wake
Up circuit is shorted high for at least 125 milliseconds.
POSSIBLE CAUSES
INSTRUMENT CLUSTER WAKE UP SIGNAL CIRCUIT SHORT TO VOLTAGE
BODY CONTROL MODULE
INSTRUMENT CLUSTER
TEST
ACTION
APPLICABILITY
1
Turn the ignition off.
Disconnect the BCM C4 harness connector.
Disconnect the Instrument Cluster C1 harness connector.
Measure the voltage between the Instrument Cluster Wake Up Signal circuit and
ground.
Is there any voltage present?
All
Yes
→ Repair the Instrument Cluster Wake Up Signal circuit for a short
to voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition off.
Ensure the BCM C4 harness connector is connected.
Disconnect the Instrument Cluster C1 harness connector.
Measure the voltage between the Instrument Cluster Wake Up Signal circuit and
ground.
Is the voltage above 5.0 volts?
All
Yes
→ Replace the Instrument Cluster in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace and program the Body Control Module in accordance
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
255
IGNITION, POWER, ACCESSORY
Symptom:
BCM - RUN/START HARDWIRE INPUT MISMATCH
When Monitored and Set Condition:
BCM - RUN/START HARDWIRE INPUT MISMATCH
When Monitored:
Continuously.
Set Condition:
When the BCM detects the Run-Start circuit is not active but the MUX
switch is in the Run position for 2 seconds.
POSSIBLE CAUSES
FUSED B(+) CIRCUIT OPEN
IGNITION SWITCH
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: Diagnose and repair any Ignition MUX DTCs before proceeding with
this test.
Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Measure the voltage between the Fused B(+) circuit and ground.
Is the voltage above 10.0 volts?
All
Yes
→ Go To 2
No
→ Repair the Fused B(+) circuit for an open. If the fuse is open make
sure to check for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Access the Ignition Switch harness connector.
Turn the ignition on.
While back probing, measure the voltage of the Fused Ignition Switch Output
(Run-Start) circuit.
Is the voltage above 10.0 volts?
All
Yes
→ Go To 3
No
→ Replace the Ignition Switch in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
256
IGNITION, POWER, ACCESSORY
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